Hoover Elite 1210, 6kg - not spinning med to fatty loads.? My washing maching have just started refuse to spin med to heavy...

My washing maching have just started refuse to spin med to heavy loads, will merely spin light loads.
Appreciate any support on what the problem & fix might be.
Thanks
My mom is idle & the house is...
Answers:    look for a loose belt or a slipping belt
I hold a problem next to my hardwood...
my old apparatus used to do this when i washed lots of towels they be just to immense to spin the drum , is the machine height has it moved ??